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公开(公告)号：US4299461A
公开(公告)日：1981-11-10
申请号：US135512
申请日：1980-03-31
CPC分类号： G03B7/16
摘要： A dual mode range responsive exposure and flash fire control system operates as a function of the photographic subject being located in either a near distance or a far distance range from the camera. For photographic subjects located within a near camera-to-subject distance range, a flash fire signal is normally provided during the exposure interval at the instant when the blade mechanism defines an aperture size generally corresponding to the camera-to-subject distance to ignite the flash and provide a determinate amount of illumination. For photographic subjects located within a far camera-to-subject distance range, a flash fire signal is normally provided subsequent to the shutter blades reaching a maximum aperture defining position with the flash output being subsequently quenched as a function of scene light detection and integration.
摘要翻译： 双模范围响应曝光和闪光灯消防控制系统作为摄影对象的功能进行操作，摄影对象位于相机的近距离或远距离范围内。 对于位于相机到被摄物体距离范围内的摄影对象，通常在曝光间隔期间在叶片机构限定通常对应于照相机对被摄体距离的孔径尺寸的瞬间提供闪光信号，以点燃 闪光并提供确定的照明量。 对于位于远摄像机到被摄体距离范围内的摄影对象，通常在快门叶片达到最大光圈定义位置之后提供闪光灯信号，闪光灯输出随后随着场景光检测和整合的功能被淬灭。
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公开(公告)号：US4317620A
公开(公告)日：1982-03-02
申请号：US113042
申请日：1980-01-17
CPC分类号： G03B7/16
摘要： A photographic exposure and flash fire control system initially measures ambient scene light and subsequently utilizes the results of that measurement to control the amount of artificial illumination provided during the exposure interval. The initial measurement of ambient scene light below a first select level provides for a maximum flash output while conversely the initial measurement of ambient scene light above a second select level greater than the first select level provides for minimum flash output. The initial measurement of ambient scene light between the aforementioned first and second levels provides for a flash output which progressively varies between the aforementioned minimum and maximum outputs in inverse corresponding relation with respect to the progressive variation of measured ambient scene light between its first and second select levels.
摘要翻译： 照相曝光和闪光消防控制系统最初测量环境场景光，并随后利用该测量结果来控制在曝光间隔期间提供的人造照明量。 低于第一选择电平的环境场景光的初始测量提供最大闪光输出，而相反地，高于高于第一选择电平的第二选择电平的环境场景光的初始测量提供最小闪光输出。 上述第一级和第二级之间的环境场景光的初始测量提供闪光输出，其在相对于其第一和第二选择之间的测量环境场景光的逐渐变化的反向对应关系中在上述最小和最大输出之间逐渐变化 水平。
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